class People {
    float hello(int a,int b) {
      return a+b;
    }
    float hello(long a,int b) {
      return a-b;
    }
    double hello(double a,int b) {
      return a*b;
    }
} 
public class Example4_12 {
    public static void main(String args[]) {
      People tom = new People();
      System.out.println(tom.hello(10,20));
      System.out.println(tom.hello(10L,20));
      System.out.println(tom.hello(10.0,20));
    }
}
